Mobile apparatus for icing refrigerator vehicles



April 1937- E. c. GRAYSON ET AL 2,078,379

MOBILE APPARATUS FOR ICING REFRIGERATOR VEHICLES Filed Sept. 25, 1935 4 Sheets-Sheet 1 Ellison C Graya'on Verne WI Banner April 1937. E. c. GRAYSON ET AL 2,078,379

MOBILE APPARATUS FOR ICING REFRIGERATOR VEHICLES Filed Sept. 25. 1955 4 Sheets-Sheet 2 Llama/Wm y El Z1290 n C. Grill SO11 Verne WTBenner April 27, 1937.

E. C. GRAYSON ET AL MOBILE APPARATUS FOR ICING REFRIGERATOR VEHICLES Filed Sept. 25 1935 4 Shawls-Sheet 3 n W ,s m m TC GB C umf u E e April 27, 1937- E. c. GRAYSON ET AL 2,078,379

MOBILE APPARATUS FOR ICING REFRIGERATOR VEHICLES I fi fi 97 95 q. 9 88 87 zlvwcnlcws Ellison LI Gl'aysorz l'er'ne W. Ben ner provide an improved ice handling unit which is.

Patented Apr. 27, 1937 UNITED STATES MOBILE APPARATUS FOR ICING REFRIG- EMTOR VEHICLES Ellison O. Grayson and Verne W. Bonner, St. Paul, Minn.

Application September 25, 1935, Serial No. 42,093

llOIaim This invention relates to improvements in mobile equipment for icing refrigerator cars and other vehicles, and particularly to a portable or automotive machine by which ice may be conveniently and rapidly delivered directly to the ice bunkers of refrigerator cars. The ice so delivered may be either crushed or uncrushed, but the equipment is especially designed to be used to deliver crushed ice to vehicles of the type named.

While the embodiment of the invention herein illustrated is intended primarily for icing railway refrigerator cars, it is intended to disclose that the invention is equally applicable to the icing of motor trucks, trailers or the like, for use in refrigerated transport service generally.

Heretofore, refrigerator cars have been supplied with ice from ice storage houses to which each refrigerator car is moved, stopped, iced, and then moved on. It has been proposed to use ice handling apparatus mounted for movement on the same track on which the refrigerator cars are located; and it has also been known to provide ice handling equipment which is moved to the side of a. refrigerator car and operated to transfer block ice from such equipment to the ice bunkers of the refrigerator car.

It is the object of this invention to provide an improved portable machine which will elevate and deliver either crushed or uncrushed ice as desired to the ice chambers, or bunkers of refri erated vehicles.

It is a further object of this invention to provide a mobile unit adapted to receive block or cake ice, crush the ice, elevate the crushed ice, and deliver it to the ice chambers or bunkers of refrigerator cars and the like.

It is a still further object of this invention to automotive and which may be driven, as an ordinary motor vehicle. to each of a series of cars or vehicles to be iced.

Another object of the invention is to provide a device for icing refrigerator cars which embodies a folding or collapsing structure, and which therefore may be more easily transported than devices of this nature formerly known and used, and which is more emcient in operation.

Other objects and advantages of the invention will be apparent from the following detailed description of an embodiment of the invention, shown in the accompanying drawings, wherein:

Figure l is a side elevation view of a preferred form of the complete ice handling unit with the lowered position of the elevator during movement of the unit from one vehicle to another indicated by dotted lines.

Figure 2 is a front end view of the unit shown in Figure 1 showing the elevator positioned to deliver ice to the hatch over the ice bunker of a refrigerator car.

Figure 3 is a schematic view showing the principal parts of the drive mechanism including a view of a section of the elevator.

Figure 4 is a transverse section view of the elevator along line 4-4 of Figures 1 and 2.

Figure 5 is an enlarged side view of the top of the elevator showing the ice delivery mechanism.

Figure 6 is a vertical transverse section along line O-l of Figure 1.

Figure 7 is an enlarged partial section on the same line showing the position of the delivery mechanism for discharge to one side of the elevator.

Figure 8 is a similar view showing the parts in position for discharge to the opposite side of the elevator.

Figure 9 is a plan view of the slidable delivery chutes. and

Figure 10 is a front view of the latch mechanism for holding the elevator in its lowered, in-

operative position.

Referring to Figure 1 of the drawings, the preferred embodiment of the invention is illustrated as comprising an automobile truck chassis, indicated by numeral it, although an ordinary wheeled truck adapted to be drawn by a separate motor vehicle may be used. Rigid supports it are mounted on the chassis near the rear thereof for carrying a transverse shaft ii, on which an inclined elevator I8 is pivotally supported. The elevator I6 is preferably of the endless chain or conveyor type. and is described more fully hereinafter.

The lower end I! of the inclined elevator I8 is enlarged and extended, to provide support for an ice crusher l8. An ice receiving platform |9 is supported on top of the crusher l8. Additional upright supports 20 are provided for the ice receiving platform. A trap door 2!, pivoted at 22, and shown in raised position by dotted lines in Figure 1, is provided on the ice receiving platform is directly above the ice crusher l8. When in the down position, the trap door is substantially even with the surface of the platform la, in order that ice delivered to the device may pass over the ice crusher directly to the elevator It. The trap door, when in raised position, allows ice to pass to the crusher, where it is crushed before delivery to the elevator l6. Members 23 and 24 support the trap door II in its raised position, and aid in guiding ice into the crusher l8.

The elevator l8 may be of any suitable construction, but it is preferably of the endless chainconveyor type shown, and comprises (see Figures 3 and 4) two longitudinal beams 85, connected by transverse braces 88 which support the inclined trough or guideway 21. Pusher bars 28 attached to members 28 are driven along the guideway 21 by endless chains 88. Longitudinal members 85 having their upper edges reinforced by channel members 85 are attached to the upper side of beams 25, and enclose the top of chain 88. The members 85 also serve to increase the effective depth of inclined guideway 21. longitudinally extending members 81 and 88 support the endless chains 88 between the ends of the elevator. Transverse shafts 48 and 8| iournaled in the lower end H of the elevator, and shaft 42 Journaled on the top of the elevator carry pairs of chain sprockets 58, around which the endless chains 38 operate. A takeup device 55 (see Figure 1) is provided to remove the slack from the elevator chains 88 by moving the sprocket shaft 88 rearwardly.

Ice delivery mechanism is carried at the upper end of the inclined elevator for directing the ice, crushed or uncrushed, from the upper end of the elevator into conventional roof hatches above the ice bunkers of the vehicles to be iced. The delivery mechanism consists of a tlitable delivery table 88, and a movable ice chute 85, the details of which are illustrated in Figures -9 inclusive.

The delivery mechanism is supported in a structural framework including horizontal members 58 and 5| secured to the elevator by welding, riveting, or the like, and connected together by suitable vertical members 52 and 58 and transverse members 54 and 55. The delivery table 58 is supported on the shaft 51 by means of sleeves 88 having flanges 8| secured to angle members 82 fastened on the under side of the delivery table. Bracing members 84 are also secured to the under side of the tiltable table to reenforce the same. The shaft 51 is supported in journals 58 carried by members 56 fastened to the frame members 55.

The ice delivery table 88 is provided with upwardly extending sides 85 and 68. Side 85, the relative size and outline of which is indicated by dotted lines in Figure 6, is shaped or cut away to permit ice to be discharged from the end of elevator l8 onto the table. Side 58 is sumciently high to intercept the discharge of ice from the end of the elevator l8 and to direct it outwardly to one or the other end of the delivery table 83. The floor of the table 53 is widest at the center where the discharge from the elevator is received, and tapers to somewhat narrower discharge or delivery ends. The table 88 pivots on shaft 51 for delivering ice to either side of the machine, at the will of the operator. Members 5! which form part of the frame limit the pivoting movement of the table.

Suspension members 18, and braces 1i attached to members 5|, extend below the delivery mechanism frame to support two pairs of track rails or guideways 12 and 18, preferably of angle iron section. Rods 18, carrying spacing sleeves 15, maintain the tracks at the desired width or gauge, and secure the track rails 18 to the lower ends of suspension members 18 and braces 1|. Braces 18, forming angular connections with the frame members 5| provide additional strength and rigidity to the rail supporting structure. At

one end, (see Figure 8) the track rails 12 and 18 are connected by a semi-circular section 11, attached to the face of supporting members 18 and preferably welded to the ends of track rails II and 13. At the opposite end (see Figure 1) the track rails 12 are extended upwardly in a semi-circular arc, and track rails 18 are extended downwardly, in an are, by the curved sections 18 and 88 respectively, attached to the face of a supporting member 8| and also preferably welding to track rails 12 and 18.

A delivery chute 85 is mounted for sliding movement on tracks 12 and 18, which chute is preferably constructed with a flat rectangular bottom 86 and upturned sides 81, the latter having edge reenforclng members 88. Metal reenforcement straps 89 and 88 are attached to the end edges of the chute. Rollers 85 and 88 are mounted on stub axles 91 and 88, rollers 85 being mounted near the bottom 88 of one end of the chute on strap 88, and rollers 88 near the upper edges of the chute sides 81 on strap 88, at the opposite end of the chute. Rollers 85 operate on the lower track 18, and rollers 88 on the upper track 12. If the chute is positioned to the right, as shown in Figure 8, rollers 85 engage the semicircular track section 11, which limits the outward movement of the chute, and prevents separation of the chute from its supporting frame. The end track section 11 is so positioned that the sliding movement of the chute is checked with the edge of the chute immediately below the edge of the table 83, and in order that the chute 85 may be swung slightly downward, the stub axles 81 serve as a pivot, permitting the chute to assume the inclined position shown in Figures 2 and 8.

When the chute 85 is moved in the opposite direction, rollers 95 engage curved track sections 18 which latter check the sliding movement and permit the chute to swing or pivot on stub axles 98 to the position shown in Figure 7. Pins 89, attached to the frame by chains I85 may be insorted through suitable openings in the tracks to retain the chute in horizontal carrying position beneath the table 88. The pins at one end of the chute are removed when it is desired to draw the chute to its extended delivery position.

when the device is positioned, e. g., beside a refrigerator car I05, as shown in Figure 2, the length of the delivery table is sufficient to permit the tilted table to discharge directly into the near hatch I85. The chute 85 is intended to be used to deliver ice to the hatch I81 on the far side of the refrigerator car, or to the near hatch when roadway conditions do not permit the device to be close to the vehicle to be iced.

Referring now to Figure 3, a power take-off mechanism Hll is associated with the transmission gear HI of truck motor H2, to which it may be operatively connected by means of gear shift lever H3. The take-off mechanism Hll supplies power to a. transverse shaft HI, mounted on truck chassis l5 through a drive shaft H8. A separate motor may be mounted on the vehicle chassis i8 and used instead of the vehicle motor for operating shaft III.

A clutch H5 at one end of shaft H4 operatively connects sprocket H5 to shaft H5 to drive an oil pump H8 through chain drive H1. The oil pump delivers oil under pressure to either end of a cylinder H9, depending on the adjustment of the valve mechanism I25. The valve mechanism may be embodied in the pump structure or se'parately as shown in the drawings. The cylinder H8 is pivotally mounted on shaft l2| Journaled on the truck chassis. A piston and piston rod I22 are arranged for operation in cylinder H6, and the. piston rod has its outer end pivotally attached, at I26, to a shaft. carried by the elevator at one side of its pivotal support I6. when valve I26 is adjusted to supply oil under pr ssure to the upper end 01' cylinder I I6, piston I22 is forced downwardly to raise the delivery end of the elevator I6, by pivotal movement oi the entire elevator about shalt I6. When oil. under pressure, is supplied to the lower end oi the cylinder, the elevator is lowered to the position indicated by dotted lines in Figure l. A bracket I26 (see Figure 1) attached to the elevator, rests on the truck chassis when the device is in operative position, and this bracket serves to limit the maximum imclination of the elevator.

A second clutch I26, at the opposite end of shaft Ill, operatively connects sprocket I 66 for driving the endless chain or belt III. This chain passes over an idler sprocket I 62, then downwardly under idler I 63. and thence around sprocket I36 on shaft I36 for operating the crushing roll I36. Chain i3I then passes under idler I61, over sprocket I36, over idler I66 and back to sprocket proper I36. Idler I63 is adjustably mounted on the elevator I6 to permit proper tensioning of chain I3I. Sprocket I36 drives a shaft I66 journaled on the elevator I6 and carrying a sprocket MI. A chain or belt I62 passes around the latter sprocket and around a sprocket I66 at the upper end 01' the elevator to supply power to a shaft 62 from which the elevating chains are driven. Shaft I carrying idler I66 is adjustably mounted on elevator I6 with movable journals I46 for tensloning chain I62.

Idlers I32 and I66 are spaced an equal distance from shaft I5. When the inclination of the elevator is changed, one of the idlers moves away from the shaft III by the same distance that the other approaches the shai't. In this manner the elevator may be pivoted about shaft I6 without producing slack in chain iii and the power supplying means will be operable in any inclined posltion of the elevator.

Standards I66 mounted on the front of chassis I6 are'connected by cross members I6I and I62 as shown in Figure 10. Member I63 attached to the top of cross member I6I serves as a bufier or stop defining the lowest position to which the elevator I6 may be lowered. Latches I66, mounted on pivots I64 are provided for retaining the elevator I6 in lowered position. A lever I66, pivoted at I61 on the brace I66, is connected to latches I55 by members I66 and lil respectively. A rod I66 is attached to lever I66 and provided with a handle I63. Spring I62 extending between a collar on the rod I66 and the member I66 tends to keep the latches engaging the elevator I6 in the position shown in Figure 16 until released by pulling outwardly on handle I63. When the elevator is swung downwardly against member I66 the latches are forced outwardly and then snap into latching position automatically to secure the elevator until they are opened manually by operation of the handle I66.

The operation of the above-described preferred form of ice handling apparatus for supplying crushed ice to the ice bunkers of a railway or other refrigerator vehicle is as follows:

The unit is driven to a position adjacent and approximately parallel to the car or truckto be iced, as shown in Figure 2. The elevator I6 should be in the raised position shown so that the edge of the tilted delivery table 66 slightly overhangs the edge of the adjacent hatch I66 in the car roof above the ice bunker. A truck containing block ice is backed up to the rear of the ice handling unit, so that the truck plat-- form is adjacent the ice receiving platform I6 oi the handling unit. The trap door 2| is raised and the block ice cut into cakes weighing 50 to 160 pounds each. The crushing and ele vator mechanisms are now put into operation by engaging the clutch I26. The cakes of ice are then fed through the trap door 2i into the crusher I6, where they are crushed to the desired fineness depending on the adjustment or the crusher. The crushed ice i'alls irom the bottom of the crusher I 6 onto the elevator trough 21 where it is engaged by the driven pusher bars 26 which convey the crushed ice up the incline to the top of the inclined elevator. The crushed ice is moved over the top of the elevator trough 21 by the pusher bars and falls onto the tilted delivery table 66 irom' which it slides into the car hatch I66.

When it is desired to supply ice to a bunker on the far side of a car, the chute 66 is drawn from its position under the delivery table 63 to an extended position shown dotted in Figure 2, overhanging the hatch I61. The mounting of the chute 66 permits it to be drawn to the extended position without interrupting the continuous delivery of ice to the vehicle bunkers. When in this position, ice delivered to the tilted table 66 slides into the chute 66 and thence into the hatch I61. Salt or the like may be added to the ice, as it is discharged into the bunkers, for assisting refrigeration.

It will be noted that the tiltable delivery table permits the ice handling unit to be operated on either side or a car to be iced or to be operated between cars. The sliding delivery chute may be extended on either side of the unit to increase its range of use.

Where chunk icing is preferred, the trap door 2I is kept closed, and chunks oi ice fed directly over the platform I6 to the elevator without crushing. The pusher bars convey the ice chunks or cakes up the elevator to the delivery table in the same manner as for crushed ice.

After an ice bunkeror several bunkers have been supplied with the desired amount oiice, the ice handling apparatus may be moved or driven to another car or cars to be iced. Where the unit is to be moved a relatively great distance or through surroundings having low overhead clearance, the elevator will belowered until it rests on the supporting member I66 and is secured by the latches I66. Suitable manipulationoi the valve I26 and the clutch iil'admits oil under pressure to the cylinder II! and piston-122 for lowering or raising the elevator as desired.

It will be observed that with the use of the above described equipment, the icing of refrigerator cars may be rapidly and eiiiciently accomplished. Thus, a train oi refrigerator cars may be completely iced without the necessity of "spotting each car at a definite position for individual icing. Frequently a train 01' cars includes some cars which require the use of crushed ice for refrigeration and some in which chunk ice is desired, or a combination of chunk and crushed ice. The equipment described can deliver either chunk or crushed ice at the will or the operator. The crushed ice reaches the bunkers immediately after crushing, and thereby losses due to melting are minimized.

It will be understood that various changes in the size, shape. proportion and minor details of construction may be resorted to without sacrificing any of the advantages or departing from the herein described invention.

What is claimed is:

1. In mobile apparatus for supplying ice to the bunkers of refrigerator vehicles, the combination comprising, a vehicle chassis having a source of power thereon, an inclined elevator pivotally supported intermediate its ends on said chassis, ice receiving means carried by and aligned with the lower end of said pivoted elevator, ice delivery means carried by and aligned with the opposite end of said pivoted elevator, means oper- 8131.8 from said source of power for changing the inclination of the entire elevator and the ice receiving and delivering means carried thereby to regulate the height of its delivery end, and driving means extending between said elevator and said source of power on said chassis for operating said elevator, said driving means being arranged concentrically with respect to the axis of the pivotal support or the elevator to permit changes in elevator inclination while maintaining an operative driving connection therewith.

2. In mobile apparatus for supplying crushed and/or cake ice to the bunkers of refrigerator vehicles, the combination comprising, a vehicle chassis having a source of power thereon. an inclined elevator pivotally supported intermediate its ends on said chassis, an ice crusher supported on the lower end of said elevator and having a discharge outlet for-delivery of crushed ice to the conveying mechanism of said elevator, means carried by said crusher for directing cake ice to said crusher and to said elevator means on and aligned with the opposite end of said elevator, for directing the delivery of crushed and/or cake ice to the bunkers of said refrigerator vehicles, and driving means extending between said crusher, said elevator and said source of power for operating said crusher and elevator, said driving means being arranged with respect to the pivotal support of the elevator to permit changes in the inclination of the entire elevator and crusher carried thereby while maintaining an operative driving connection.

3. In mobile apparatus for supplying crushed and/or cake ice to the bunkers of refrigerator vehicles, the combination comprising, a vehicle chassis having a source of power thereon, a transverse shaft supported in an elevated position on said chassis, an inclined elevator pivotally supported intermediate its ends on said shaft, an ice crusher supported on the lower end of said elevator, an ice receiving platform at the upper side of said crusher, said platform having provision for receiving and delivery of ice to the crusher and to the elevator, ice delivery means on the upper end of said elevator for directing the delivery of cake and/or crushed ice to the bunkers of said refrigerator vehicles, and driving means extending between said crusher, said elevator and said source of power for operating said crusher and elevator, said shaft being adjacent the center of gravity of said elevator and the parts supported thereon, said driving means being arranged with respect to the pivotal support of the elevator to permit changes in the inclination of said elevator while maintaining an operative driving connection with said crusher and said elevator.

4. In mobile apparatus for supplying crushed and/0r cake ice to the bunkers of refrigerator v hicles. the combination comprising, a vehicle chassis having a source of power thereon, an inclined elevator pivotally supported intermediate its ends on said chassis, an ice crusher supported on the lower end of said elevator, an ice receiving platform at the upper side of and carried by said crusher, said platform having an opening therein above the inlet of the crusher whereby cake ice received on said platform may be directed to said crusher, and a door for closing said opening whereby cake ice received on said platform may be delivered directly to said elevator, means driven by said source of power for changing the inclination of said elevator to regulate the height of its delivery end, and driving means extending between said crusher. said elevator and said source of power for operating said crusher and said elevator, said driving means being arranged with respect to the pivotal support of the elevator to permit changes in the inclination of said elevator while maintaining an operative driving connection with said crusher and said elevator.

5. In a mobile apparatus for elevating ice to the hatch of a refrigerator vehicle ice bunker, an ice delivery mechanism supported at the upper end of said apparatus and comprising, a delivery platform pivotaily supported intermediate its ends for tilting toward either side of the apparatus, and a slidable delivery chute positioned in transverse guides carried by said mechanism beneath said platform, said chute being adapted to be extended to a position at either side of the apps.- ratus for directing ice from said delivery platform to vehicle hatches beyond the reach of said tiltable platform.

6. In a mobile apparatus for elevating ice to the hatch of a refrigerator vehicle ice bunker, an ice delivery mechanism supported at the upper end of said apparatus and comprising, a delivery platform pivotally supported intermediate its ends for tilting toward either side of the apparatus, the said platform being of suillcient length to project over an adjacent refrigerator vehicle hatch, and a slidable delivery chute positioned in transverse guides carried by said mechanism beneath said platform, said chute being adapted to be extended to a position at either side of the apparatus for directing ice from said delivery platform to vehicle hatches beyond the reach of said platform.

'7. In mobile apparatus for elevating and discharging ice into the hatch of a refrigerator vehicle ice bunker, an ice delivery mechanism carried by the upper end of said apparatus and comprising, a platform positioned for receiving ice discharged from the top of the elevating apparatus, the said platform being pivotally supported intermediate its ends for tilting toward either side of the apparatus and being of sumcient length to overhang the ice hatch of an adjacent refrigerator vehicle, horizontal guides carried by said mechanism beneath said platform, said guides being provided with stops at the ends thereof, and a delivery chute supported on rollers engaging said guides, said chute being adapted to be drawn to either side of the apparatus into engagement with the stops at one end of the guides and inclined downwardly for directing the discharge of ice from said tilted platform into the hatch of a refrigerator vehicle ice bunker.

8. In mobile apparatus for supplying crushed and/or cake ice to the bunkers of refrigerator vehicles, the combination comprising, a vehicle chassis having a source of power thereon for driving said apparatus, an inclined ice elevator aovaavo pivotally supported on said chassis, an ice crusher supported on the lower end of said elevator and having a discharge outlet for delivery of crushed ice to the ice conveying mechanism of said elevator, an ice receiving platform supported above said crusher, said platform having an opening therein above the inlet of said crusher and a door for closing said opening, an ice delivery platform pivotally supported intermediate its ends at the upper end of said elevator for tilting toward either side of the apparatus, a slidable delivery chute positioned in transverse guides beneath said delivery platform, said chute being adapted to be extended to either side of the apparatus for directing ice from said delivery platform to the vehicle bunker, and means extending between said source of power on the chassis and the crusher and elevator for operating said crusher and elevator.

9. In mobile apparatus for elevating and discharging block and crushed ice into the icing batch of a refrigerator vehicle ice bunker, the combination comprising, a mobile chassis and a source of power thereon, an inclined elevator supported on said chassis, an ice crusher supported on the lower end of said elevator, a block ice receiving platform on said crusher having an opening therethrough, said crusher and platform being arranged with respect to said elevator that some of the block ice received on said platform may be guided through said opening into-said crusher i'or crushing and feeding to said elevator, and other block ice received on said platform may be guided thereacross directly onto said elevator, ice discharging means supported on the upper end of said elevator, and driving means connecting said elevator and said crusher with said source 01' power.

10. In mobile apparatus for elevating and discharging block and crushed ice into the icing hatch 01' a refrigerator vehicle ice bunker, ice discharging means supported on an elevated portion of said apparatus, said means comprising, a pivotally supported delivery table tiltable toward an icing hatch of a vehicle on either side of said apparatus, a pair of transverse guides supported beneath said tiltable delivery table, a discharge chute slidably arranged in said guides for movement toward either side of said apparatus, and stops secured to said guides engaging said chute when extended to either side of the apparatus to limit such movement while allowing the chute to be inclined downwardly away from said delivery table toward a hatch of a refrigerator vehicle.

11. In mobile apparatus for elevating and discharging block and crushed ice into the icing hatch of a refrigerator vehicle ice bunker, the combination comprising, a mobile chassis and a source of power thereon, an inclined elevator, pivotally supported intermediate its ends on said chassis, block ice receiving end crushing means secured on the lower end of said pivotally supported elevator, block and crushed ice discharging means secured on the upper end of said pivotally supported elevator, said means being arranged with respect to the pivotal support of said elevator that said elevator including the means secured thereon is in approximate balance on its pivotal support and its inclination adjustable by minimum energy, and driving means connecting said elevator and said crusher with said source of power.

ELLISON C. GRAYSONI VERNE W. BENNER.

CERTIFICATE OF CORRECTION.

Patent No. 2,078,379.

of the above numbered patent requiring correction as follows:

Apri1n2'7', 1937.

ELLISON C. GRAYSON, ET AL.

It is hereby certified that error appears in the printed specification Page 1,

first column, line 5, for "to" read into; page 3, second column, line 51, for "another" read other; and page 5, second column, line 24, claim 11,

I for "end" read and; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 8th day of June, A. D. 1957.

(Seal) Henry Van Arsdale Acting Commissioner of Patents.

aovaavo pivotally supported on said chassis, an ice crusher supported on the lower end of said elevator and having a discharge outlet for delivery of crushed ice to the ice conveying mechanism of said elevator, an ice receiving platform supported above said crusher, said platform having an opening therein above the inlet of said crusher and a door for closing said opening, an ice delivery platform pivotally supported intermediate its ends at the upper end of said elevator for tilting toward either side of the apparatus, a slidable delivery chute positioned in transverse guides beneath said delivery platform, said chute being adapted to be extended to either side of the apparatus for directing ice from said delivery platform to the vehicle bunker, and means extending between said source of power on the chassis and the crusher and elevator for operating said crusher and elevator.

9. In mobile apparatus for elevating and discharging block and crushed ice into the icing batch of a refrigerator vehicle ice bunker, the combination comprising, a mobile chassis and a source of power thereon, an inclined elevator supported on said chassis, an ice crusher supported on the lower end of said elevator, a block ice receiving platform on said crusher having an opening therethrough, said crusher and platform being arranged with respect to said elevator that some of the block ice received on said platform may be guided through said opening into-said crusher i'or crushing and feeding to said elevator, and other block ice received on said platform may be guided thereacross directly onto said elevator, ice discharging means supported on the upper end of said elevator, and driving means connecting said elevator and said crusher with said source 01' power.

10. In mobile apparatus for elevating and discharging block and crushed ice into the icing hatch 01' a refrigerator vehicle ice bunker, ice discharging means supported on an elevated portion of said apparatus, said means comprising, a pivotally supported delivery table tiltable toward an icing hatch of a vehicle on either side of said apparatus, a pair of transverse guides supported beneath said tiltable delivery table, a discharge chute slidably arranged in said guides for movement toward either side of said apparatus, and stops secured to said guides engaging said chute when extended to either side of the apparatus to limit such movement while allowing the chute to be inclined downwardly away from said delivery table toward a hatch of a refrigerator vehicle.

11. In mobile apparatus for elevating and discharging block and crushed ice into the icing hatch of a refrigerator vehicle ice bunker, the combination comprising, a mobile chassis and a source of power thereon, an inclined elevator, pivotally supported intermediate its ends on said chassis, block ice receiving end crushing means secured on the lower end of said pivotally supported elevator, block and crushed ice discharging means secured on the upper end of said pivotally supported elevator, said means being arranged with respect to the pivotal support of said elevator that said elevator including the means secured thereon is in approximate balance on its pivotal support and its inclination adjustable by minimum energy, and driving means connecting said elevator and said crusher with said source of power.

ELLISON C. GRAYSONI VERNE W. BENNER.

CERTIFICATE OF CORRECTION.

Patent No. 2,078,379.

of the above numbered patent requiring correction as follows:

Apri1n2'7', 1937.

ELLISON C. GRAYSON, ET AL.

It is hereby certified that error appears in the printed specification Page 1,

first column, line 5, for "to" read into; page 3, second column, line 51, for "another" read other; and page 5, second column, line 24, claim 11,

I for "end" read and; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 8th day of June, A. D. 1957.

(Seal) Henry Van Arsdale Acting Commissioner of Patents. 

